March 22 – InWashington, D.C.,General Motors President James M. Roche appears before a Senate subcommittee, and apologizes to consumer advocateRalph Nader for the company's intimidation and harassment campaign against him.
March 29 – The 23rd Communist Party Conference is held in theSoviet Union;Leonid Brezhnev demands that American troops leave Vietnam, and announces that Chinese-Soviet relations are unsatisfactory.
May 19 –Murder of Sylvia Likens: Gertrude Baniszewski is found guilty of torturing and murdering 16-year-old Sylvia Likens in Indiana and is sentenced to life in prison (she is released on parole in December1985).[4]
1966 Topeka tornado:Topeka, Kansas is devastated by a tornado that registers as an F5 on theFujita Scale, the first to exceed US$100 million in damages. Sixteen people are killed, hundreds more injured, and thousands of homes damaged or destroyed.[5]
TheCongress of Racial Equality (CORE) endorses the goal ofBlack Power at a well attended convention inBaltimore, Maryland. Martin Luther King Jr., and Roy Wilkins criticize this declaration.
September 1 – While waiting at a bus stopRalph Baer, an inventor withSanders Associates, writes a four-page document that lays out the basic principles for creating a video game to be played on a television: the beginning of a multibillion-dollar industry.
September 8–10 –State visit to the U.S. by the dictator GeneralNe Win, Chairman of the Revolutionary Council of the Union of Burma. He is honored by a 21-gun salute and given the key to the city of Washington D.C., "a long-standing American tradition of welcome". He holds talks with PresidentLyndon Johnson and with the highest ranking U.S. officials at the State Department who reaffirm support for Burmese neutrality. Further talks are held withGeorge Ball, acting Secretary of State, and withAverell Harriman, U.S. Ambassador at Large.[7] Talks included an exchange of views on world issues and Burmese-American relations, and were officially described as "cordial", and the U.S. president and the General expressed mutual regard, according to a communiqué composed before the visit.[8] The General also visits Williamsburg in Virginia, the United Nations in New York City (where he is greeted by the Burmese Secretary GeneralU Thant) and Hawaii.[9]
Valerie Percy, the 21-year-old daughter of Illinois Republican senatorial candidateCharles H. Percy, is stabbed and bludgeoned to death in the family mansion on Chicago's North Shore. The crime remains unsolved.
LSD is made illegal in the United States and controlled so strictly that not only are possession and recreational use criminalized, but all legal scientific research programs on the drug in the country are shut down as well.
The Love Pageant Rally takes place in thePanhandle of Golden Gate Park (a narrow section that projects into San Francisco'sHaight-Ashbury district).
ABC broadcasts a highly acclaimed 90-minute television adaptation of the musicalBrigadoon, starringRobert Goulet,Peter Falk, andSally Ann Howes. It wins manyEmmy Awards and inaugurates a short-lived series of special television adaptations of famous Broadway musicals on ABC. Goulet stars in all but one of these specials.